The network standard supports mobile 4G+/4G/3G/2G and supports Unicom / Telecom 4G/3G/2G. Note: card slot 1 and 2 can be arbitrarily switched to the main card and sub card, and 2 telecommunication cards cannot be used at the same time.

The main card network frequency: TDD-LTE:B38/B39/B40/B41 (2555MHz~2655MHz); FDD-LTE:B1/B3/B7; TD-SCDMA:B34/B39; WCDMA:B1/B2/B5/B8; CDMA2000/1X:BC0 (800MHz); GSM:850/900/1800/1900MHz; GSM:850/900/1800/1900MHz; vice card: Note: can support two CDMA cards at the same time, the various regions of the network and the frequency may vary, depending on the local operators and your position